import { ISuggestValue, ISuggestValueData, ISuggestValues, SuggestDisplayPriority } from '../models';
/**
 * Case-insensitive comparer.
 *
 * @param str1 Left hand input.
 * @param str2 Right hand input.
 * @returns If the strings are equal.
 * @ignore
 */
export declare const caseInsensitiveCompare: (str1: string, str2: string) => boolean;
/**
 * Generates an in memory search factory.
 *
 * @param searchTerm The term searched for.
 * @param sourceList The items that need to be filtered.
 * @ignore
 */
export declare const inMemorySearch: (searchTerm: string, sourceList: ISuggestValue[]) => import("rxjs").Observable<ISuggestValues<any>>;
/**
 * Clears falsy values from the array.
 *
 * @export
 * @param value The value that needs to be normalized.
 * @returns The normalized value.
 * @ignore
 */
export declare function checkAndNormalizeValue(value: ISuggestValue[]): ISuggestValue[];
/**
 * Sorts the items according to the configured display priority and render direction.
 *
 * @export
 * @param data The item list that needs to be sorted.
 * @param displayPriority The requested display priority.
 * @param value The selected items.
 * @param isDown If the dropdown direction is `down`.
 * @returns The sorted item array.
 * @ignore
 */
export declare function sortByPriorityAndDirection(data: ISuggestValue[], displayPriority: SuggestDisplayPriority, value: ISuggestValue[], isDown: boolean): ISuggestValue[];
/**
 * @ignore
 */
export declare function mapInitialItems({ total, data }: ISuggestValues<any>, displayPriority: SuggestDisplayPriority, value: ISuggestValue[], loadingLabel: string, isDown: boolean, isLazy?: boolean): ISuggestValue[];
/**
 * @ignore
 */
export declare function generateLoadingInitialCollection(text: string, total?: number): ISuggestValue[];
/**
 * @ignore
 */
export declare function setLoadedState(data: ISuggestValueData<any>[], start: number, currentItems: ISuggestValue[], isLazy?: boolean): ISuggestValue[];
/**
 * @ignore
 */
export declare function toSuggestValue(inputValue: ISuggestValue | string, isCustom?: boolean): ISuggestValue;
/**
 * @ignore
 */
export declare function resetUnloadedState(items: ISuggestValue[], mappedStart: number, mappedEnd: number): void;
/**
 * @ignore
 */
export declare function setPendingState(items: ISuggestValue[], mappedStart: number, mappedEnd: number): void;